At the time of the 2006 National Census, the district's population was 28,017 in 6,486 households. The following census in 2011 counted 32,154 people in 8,319 households. The 2016 census measured the population of the district as 36,481 inhabitants living in 10,473 households.
123سرشماري عمومي نفوس و مسكن 1395: استان بوشهر[General Population and Housing Census 2016: Bushehr Province]. مرکز آمار ایران [Statistical Centre of Iran] (in Persian). Archived from the original(Excel) on 3 August 2017. Retrieved 16 June 2025.
↑Habibi, Hassan (8 December 1996) [تاریخ تصویب (Approval date) 1375/09/18 (Iranian Jalali calendar)]. تغییر نام بخش ساحلی تابع شهرستان تنگستان استان بوشهر به بخش دلوار[Changing the name of Saheli District of Tangestan County of Bushehr province to Delvar District]. لام تا کام [Lam ta Kam] (in Persian). وزارت کشور [Ministry of the Interior]. کمیسیون سیاسی دفاعی هیأت دولت [Political Defense Commission of the Government Board]. شناسه [ID] CE8262AB-FB8C-42B7-BA61-DD3725C05E10. شماره جلد [Volume number] 75. Archived from the original on 14 June 2025. Retrieved 14 June 2025.
↑Habibi, Hassan (12 September 1990) [تاریخ تصویب (Approval date) 1369/06/21 (Iranian Jalali calendar)]. تصویب سازمان و سلسله تابعیت عناصر و واحدهای تقسیمات کشوری استان بوشهر به مرکزیت شهر بوشهر[Approval of the organization and the hierarchy of citizenship of the elements and units of the national divisions of Bushehr province with the city of Bushehr as its capital]. لام تا کام [Lam ta Kam] (in Persian). وزارت کشور [Ministry of the Interior]. کمیسیون سیاسی دفاعی هیأت دولت [Political Defense Commission of the Government Board]. شناسه [ID] 51E6AB17-6790-42EF-804B-D38845E50FAD. شماره دوره [Course number] 69, شماره جلد [Volume number] 3. Archived from the original on 12 June 2025. Retrieved 13 June 2025.
12سرشماري عمومي نفوس و مسكن 1385: استان بوشهر[General Population and Housing Census 2006: Bushehr Province]. مرکز آمار ایران [Statistical Centre of Iran] (in Persian). Archived from the original(Excel) on 20 September 2011. Retrieved 16 June 2025.
12سرشماري عمومي نفوس و مسكن 1390: استان بوشهر[General Population and Housing Census 2011: Bushehr Province]. Iran Data Portal—Syracuse University (in Persian). مرکز آمار ایران [Statistical Centre of Iran]. Archived from the original(Excel) on 3 April 2023. Retrieved 16 June 2025.